I had the chance when I was younger to live in a residence with some young couples among very aged ones
My neighbour lived in a studio, so the sound was easily echoing in the corridor.
Moreover, the residence was poor in isolation again of the front door.
So here is a sample of what I could hear sometimes...
I am not sure about how was the girl for this record as he changed a lot about girls.
Perhaps the blonde one, a little bit curvy, not so cute face...